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Synthesis of Keggin-type lacunary 11-tungstophosphates encapsulated into mesoporous silica pillared in clay interlayer galleries and their catalytic performance in oxidative desulfurization

Paper ID Volume ID Publish Year Pages File Format Full-Text
50176 46783 2014 5 PDF Available
Title
Synthesis of Keggin-type lacunary 11-tungstophosphates encapsulated into mesoporous silica pillared in clay interlayer galleries and their catalytic performance in oxidative desulfurization
Abstract

•[PW11O39(H2O)]7 − encapsulated into mesoporous silica pillared in clay galleries.•[PW11O39(H2O)M]5 − encapsulated into mesoporous silica pillared in clay galleries.•Polyoxotungstates were dispersed uniformly in the samples.•The materials showed excellent catalytic performance and good reusability for ODS.

Keggin-type lacunary polyoxotungstates [PW11O39(H2O)]7 − (PW11) and metal-modified [PW11O39(H2O)M]5 − (M = Ni2 + or Co2 +) were incorporated into the mesoporous silica pillared clays (MSPC) by a hydrothermal sol–gel method. The resulting materials retain the layered structure of the clay precursor and possess a mesoporous structure. The catalytic performance of the materials was tested using oxidative desulfurization of dibenzothiophene-containing model oil as a probe reaction. The results indicated that PW11-MSPC possess an excellent catalytic performance.

Graphical abstractKeggin-type lacunary 11-tungstophosphates encapsulated into the mesoporous silica pillared in clay interlayer galleries exhibit excellent catalytic performance in oxidative desulfurization.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Lacunary polyoxotungstate; Metal-substituted lacunary polyoxotungstate; Mesoporous silica pillared clay; Desulfurization; Porous materials
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Synthesis of Keggin-type lacunary 11-tungstophosphates encapsulated into mesoporous silica pillared in clay interlayer galleries and their catalytic performance in oxidative desulfurization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 46, 10 February 2014, Pages 156–160
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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